Improvement in machines for making bungs



^ Fig. 5 is an elevation of the feed-box at right i which, by means ofthe arm a on the sliding UNITED STATES PATENT EETCE. s"

JOHN BATGHELDER, OF CANAAN, NEW HAMPSHIRE, ASSIGNOR TO ABRAM BATOHELDER,OF LOWELL, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR MAKING BUNGS.l

Specification forming part of letters Patent No. 44,251, dated September13, ISM.

To a/ZZ whom it may concern:

Beit known that I, JOHN BATGHELDER, of Canaan, in the county of Graftonand State of New Hampshire, have invented certain new and usefulImprovements in Machines for Turning Taps and Iungs; and I do herebydeclare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to theannexed drawings, making part of this specification, in which- Figure 1is a longitudinal eleva-tion. 2 is a horizontal plan of the same. Fig. 3is a perpendicularsection through the spindles and feedbox. Fig. 4 is asection through the feed-box and at right angles to the spindles.

Fig.

angles to the spindles.

rIhe same letters refer to the same pants in all the drawings.

' A represents the frame of the machine. B is the main shaft, on whichare arranged the cams D, E, F, Gr, H, and K, by which the ,differentparts of tbe machine are operated.

On one end of said shaft B is the pulley C, to which the power isapplied.

D is a cam, formed as shown in Fig. 2,

shaft b, moves the same forward and back in its bearings.

To the outer end of the sliding shaft b is another arm, c, which isattached to the outer end of the live-spindle L, and causes the same toslide longitudinally in the manner and to the. same extent as thesliding shaft b.

Upon the sliding shaft b is a spiral spring, d, which holds the arm c inits place, in con nection with the spindle L, and assists the I a'rm ain following thecam D, and communicates motion, in connection with thecam D, to the sliding shaft b and live-spindle L. The

spindle L runs through the inside of the pulleyshaft c, as in a sleeve,and the two are retained in their relative positions by a spline. Theshaft e has on it a pulley, f, by means of which an independentrevolving motion is givento the shaft e andvspindle L.

E is a cam, formed as shown in Figs. 1 and 2, which, by means of thelever g, yone end of which is connected with the cam E and the otherwith an arm or clutch on the shaft h, whereby a sliding .motion in itsbearings is given to the shaft h and the cutter c thereon The cutter Ithas an independent re.v lving motion given to it by the'pnlley l and'suitable bits, and is supported in its bearings at the proper distanceto eut oft' the rough edges and corners ofthe blocks, when properlycentered on the spindles L and R.

F is a cam', formed as shown in Fig. 5, which operates the slide m, oneend of which bears on said cam, and the other has a scraper, a, attachedto it, and is driven by the cam against the spindle It, behind the tapor bnn g when turned, and when the spindle R is withdrawn it scrapes thetap from tbe'centers on the spindles and allows it to fall from themachine, on which slide is a spiral spring to withdraw it when notoperated by the action of the cam F.

Gr is a cam, formed as shown in Figs. 4 and 5, which operates the levero, and by means thereof withdraws and releases the spring p. bent at aright angle, as shown in Figs. 4 and 5, the end of which spring whenreleased passes through an opening in the feed-box S, and forces theblocks into the corner of the feed-box S and in a line with the centersot' the spindles, and retains them there till they are fastened on thecenters by the operation of the cam K, operating the spindle It, and thespring d and cam D operating the spindle S.

H is a cam, formed as shown in Fig. 2,which, by means of the arms q andq', attached to the sliding shaft r, operates the finishing-tool s byits sliding shaft s' raising the tool s to do the cutting necessary totinish the surface otl the tap or bung and lowering it out of the waythat the tap or bung may bc removed by the scraper un Upon this slidingshafts is an arm, t, which bears against the inclined side u of theIupright o or runs in a similar inclined groove therein, whereby, whenthe tool is raised by the operation of the cam H and its connections, itis partially rotated on its axis, and as the tap or bungis drivenforward toward the tool s by the motion of the spindle R, it cuts thebung to the taper desired.

K is a cam, formed as shown in Figs. l and 2, which is connected withthe spindle It by the arm or connectingrod te, and as the cam revolvesgives a longitudinal sliding motion to the spindle It in its bearings.

It is a spindle, sliding in suitable bearings,

Vby the dotted red line in and operated so as to slide longitudinally bythe cam K, and between Which and the spinbeing placed in it, its centerline Will be in a line with the centers ot' the spindles, as shown Fig.4, the spindle R being moved by the cam K through the 'lower part of thefeed box, carrying with it the block to the cutters 7c and s. To theside ot' this feed box S is attached the spring p, by

which the bi'ocks are forced into the said angle of the feed-box andwhich is withdrawn therefrom by the cam G operating on the lever o.

The notch in the cam D (shown at g in Fig. 2) is so made that, in caseone ot' the blocks should stick on the spindle, when the arm A passesthat point, the tension of the spring d will give the spindle L a motionsmart enough to remove the block. y

The operation ofthe machine is as follows: The feed-box being lled withblocks which have previously been sawed to the proper size, with one ofthe blocks resting at the bottom of the feed-box, power is applied tothe pulley C, which causes the shaft B to revolve, carrying withit thecams D, E,F, G, H, and K. '.llie revolution of the cam-K causes thcspindie 1t to be brought against the end of the bock, and atvtlie sametime the spring p is released and forces the block into the anglebetween the side and bottom of the feed-box with its center in line withthe centers oft-he spindles L and R, the scraper n being withdrawn bythe spring on the slide m. The further revolution ot' the shaft Bcarries the spindle R and the block partly through the lower end of thefeed-box, and at the same time the spring d on the sliding shaft b,being released by the action of the arm c on the cam D, forces thespindle L into the opposite end of the block with sufficient force tohold the block while being turned, and centering by the operation of themachine alone. The further revolution ot' the shaft B causes the spindleR, with the block held betweenit and the spindle L, through thefeed-box, when by the action of the cam G the springp is withdrawn, andby the action of the cam F the scraper n is pressed against the spindleR behind the block, and by the action ofthe cam E the cutter k isbrought so as to cut oh" the corners and rough edges of the block, andthe cutter s is raised up so as to smooth the surface of the tap orbung, and at the same time the arm t bears against the inclined side uof the upright v and gives the shaft s a revolving motion on its ownYaxis, whereby the edge of the tool is turned inwardv and causes it tocut the tap or bung to the desired taper. The further revolution of theshaft B causes the spindle R to be withdrawn-the spindle L remainingstationary-and the now, finished tap or bung is caught by the scraperand re.- moved from the spindle and falls from the machine, and as lthespindle R is wholly withdrawn another block descends to the bottom ofthe feed-box and the same operation is agian repeated, as above setforth. The cutter k and the spindle L and pulley f and puiley-shat't e,having independent motions, are

driven by other power, With'such belts as are requisite, at any desiredspeed.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The spindle L, in combination with the hollow pulley-shaft e, springd, arm a, sliding shaft b, and cam D, orV their equivalents,substantially as described, and for the purposes set forth;

2. The inclined plane or groove u, in coinbination with the cam H, thecutter s, cuttershaft s', and the devices for operating the same, ortheir equivalents, described,for the purposes set forth.

3. The feed-box S, in combination with the spring p, lever o, and cam G,or their equivalents, for centering the blocks automatically,substantially, as described, for the purposes set forth.

JOHN BATGHELDER.

Witnesses:

M. P. HALL, S. N. BELL.

substantially as

